chore(package): update eslint-config-standard to version 13.0.1

Closes #77

Author: greenkeeper[bot]

package.json

@@ -47,7 +47,7 @@
   },
   "devDependencies": {
     "eslint": "5.0.1",
-    "eslint-config-standard": "11.0.0",
+    "eslint-config-standard": "13.0.1",
     "eslint-plugin-import": "2.12.0",
     "eslint-plugin-node": "6.0.1",
     "eslint-plugin-promise": "4.0.0",